Leather-staking machine.



v F. F. SLocoMB,

LEATHER STAKING MACHlNE.

APPLlCATION FILED NOV. 6.1911.

mvENTon l WITNESSES IHN ' WITNESSES F. F. sLocoMB.

l LEATHER STAKING MACHINE.

APPLIC'ATION FILED NDV. 5, 1.911.

Eatente Nov. 20, 1917.

2 SHEETS-SHEET 2.

,mwemem VER- 'UN @TT s rnnrr anno FRANK F. SLOCOMB, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR Tf) F.y F. SLOCIVIB &

CO., INCORPORATED, A CORPORATION OF DELAWARE. Y

LEATHER-STAKING MACHINE.

Applicatonled November 6, 1911.

To all whom z' may concern: f

Be it known that I, FRANK F. SLocoMB, a citizen of the United States, residing in the city and county of Philadelphia, State .of Pennsylvania, have invented a new and useful Leather-Staking Machine, of which the following is a specification.

h/Iyfpresent'invention relates to a staking machine and consists of a novel construction and arrangement of the staking tools and' their adjuncts.

lt further consists of other novel features of construction, all as will hereinafter be fully set forth. .p Y

For the purpose of illustrating my invention, I have shown in the accompanying drawings, one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my A invention is not limited to the precise arrangement andorganization of these instrumentalities as herein shown and described.

Figure 1 represents a sectional elevation of a leather staking machine embodying my invention, a portion of the saine being broken away.

Fig. 2 represents a side elevation of the bracket for holding the staking tools. n

Fig. 3 represents a front elevation of a staking blade and certain of its adjuncts.

Fig. l represents a side elevation of one of the brackets employed.

Fig. 5 represents a front elevation partly in section of a staking roll and the bracket in which it is journaled.

Fig. 6 represents a perspective view of one of the journals seen in Fig. Q Fig. 7 represents a plan View of Fig. t.

Fig. 8 represents a plan view ofthe bracket seen in Fig. 5.

Fig. 9 represents a front elevation of the bracket seen in Fig. 2.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings j I l designates the housing of the machine which may be of any desired construction. 2 designates a connecting rod, a portion of the same being broken away, it' being of course understood that said connecting rod Specication of Letters Patent. Patented NGV. 20, 1.9117.v

Serial No. 658,646.

may be actuated or reciprocated by meansV of a crank oi' other device (not shown).

3 designates a pin or pivot common to said connecting rod and the plates a'-, the general 10 through which passes a threaded stein 11,

which is secured with respect to the bracket by means of suitable nuts 12 and 13. The lower` end of the threaded stein 11 is forked, as indicated at 14, in order vto receive the journal `15 which is pivoted with respect thereto by means of bolts and nuts 16, or equivalent fastening devices. l

17 designates a roller carried by the forked end of the journal 15 and secured therein by means of a bearing pin,v 18, said roller cooperating with the cam 19 on the connecting rod 2, as will be apparent by referencev to Fig. 1. 20 designates rods which are mounted on the pivot pin 3 and extend through a cross bar 21, carried by the bracket 10, and at their upper end` they are provided with a plurality of nuts 22 having threaded en-k gagement therewith and one of which'serves construction which will accomplish this re-V sult. The rod 2,0 isprovided with a shoulder or stop 25:'integral therewith or adjustable thereon, so that when the upper vjaw l 7 rocks onY its pivot 6 the downward movement of the bracket 10'will bev limited. l This limiting of the downward movement of the bracket 10, and thereby the upward move'y ment of the forward end 0f the upper jaw 7 which carries the rollers may also be obtained by providing a strap 26 which passes over the jaw 7 on Vthe opposite side of the pivotal pin v6 thereof, and is ysecured tothe plates 4 of the cross head 5 by means of fastening devices 27. The forward end of the upper jaw 7 is provided with a novel construction of a bracket 28. rEhe bracket OQ is provided at its rear end with one or more slots 29 through which are adaptedV to pass fastening devices 30, which in the present instance, consist of bolts and nuts, whereby the bracket :2S may be longitudinally adjusted with respect to the forward end of the upper jaw 7. The bracketfQS is provided at itsv forward end with the guides 81 and the apertures 32, said guides being adapted to cooperate with the b-ottom portion 33 of a journal 34, and, in the present instance, the guides 31 are shown as being cut away to form parallel guides which cooperate with the parallel sides of the journals 84, whereby said journals may be laterally adjusted and prevented from rotating. ri'he journals 34 are each infovided with a conical aperture in which is adapted to be seated a conical bushing` 86 in which latter is mounted the shaft 37 of the roller 38.

3.9 designates fastening devices which are adapted to pass through the slots 32 in the bracket 28, and have threaded engagement with the journals 34, whereby the journals 34 may be laterally adjusted in order to maintain the proper working t between the wearing parts and thus overcome any rattling or pounding of the roller 38, such as occurs in devices of this character as heretofore constructed after the parts are in service for some time.

rlhe lower jaw 9 has secured thereto a novel construction of a bracket 41 having its rear portion provided with a plurality of apertures 42 through which the fastening devices 43 pass, whereby said bracket 41 may be longitudinally adjusted with respect to the lower jaw 9. rllhe bracket 41 is provided with the ribs 44 which serve as a guide for the'base of a blade 45 which is secured to the bracket by means of a set screw 46, or equivalent fastening` device. 47 designate bearing` faces. 49 designates a blade supporting bracket to which a staking blade 50` is secured bv means of fastening devices 51. The blade supporting bracket 49 is provided with the downwardly extendlugs 52 which are faced off in order to engage the bearing` faces 47, as will be best understood by reference to Fig.

The brackets-9 is provided with a downwardly extending apertured portion 53 in which is non-rotatably secured in any desired manner, a threaded rod 54 which latter is adapted to pass through the apertured eX- tension 48 of the bracket 41, and to be secured in its adjusted position by means of nuts and 56 which regulate the position of the blade 50 with respect to the roller 3S.

57 is a spring suitably secured to the housing and having one end bearing against the lower jaw 9, whereby the roller 58 will engage with the cam 59 on the connecting rod 2. The r-oller 58 is mounted in a similar manner to the roller 17, seen in the upper portion of Fig. l, and a detailed description of such mounting is therefore unnecessary. 60 designates the front roller which is adjustably mounted with respect to the upper jaw 7 in the usual manner, and a detailed description is therefore unnecessary. G1 is a skin to be treated and G2 is a breast roller which is supported in bearings in the forward part of the machine in any desired manner.

The operation will now be readily apparent to those skilled in this art, and is as follows The jaws 7 and 9 when at or near their extreme forward position appear as seen in Fig. 1, the staking blade 50assuming a position intermediate the rollers 38 and 160. The hide to be staked is placed in position and held between the body ofthe operator and the breast roller G2, and the rollers 38 and GO, and the blades 45 and 50 are caused to nio-ve rearwardly through the medium of the connecting rod 2, and since thekhide is held stationary by the operator, it will be apparent that the proper treatment will be imparted thereto during the rearward movement of the rollers 38 and 60, and the blades 45 and 50, the operator or attendant shifting the hide or skin until every portion of the same has been properly treated or staked. j

Special attention is directed to certain of the novel features of my present invention. in devices of this character as heretofore constructed, considerable difficulty has arisen owing to the wear of the rollers 17 and 58 with respect to the cams 19 and 59, and since these rollers are ordinarily mounted in stationary bearings, the proper provision has not been made for causing the rollers to properly cooperate with the cam. In my present device it will be seen that the roller 17 is pivotally carried by the threaded stem 1l 'so that the same may oscillate and accommodate itself to the operative face ofthe cam 19, so that. the roller 17 will at all times engage the operative face ofthe camv 19 instead of only a portion thereof.

ln devices of this character as heretofore constructed, there is a likelihood of the upper jaw bounding upwardly, and since the operator is bending thereover in order to properly manipulate. the hide 61, it sometimes happens that the attachment secured to the upper aw 7 will strike the operator, and in order to positively prevent this, l provide means for limiting` thel upward movement of the forward end of the aw which may be accomplished by placing a stop on the rods 20, or another manner in which this can be advantageously accomico plished is by providing the strap 26 which will limit the upward movement of the forward end of the jaw 7 as is apparent.

In devices of this character wherein the shaft 37 of the roller 38 is mounted in the ordinary type of bearings, it has been practically impossible to overcome the wear of the bearing to prevent the pounding of the roll against the hide, and in my present construction any wear of the bearings may be quickly and readily overcome by loosening one of the fastening devices 39 and laterally adjusting one or both of the journals 34, and owing to the provision of the conical bearing surface the bearing may beV properly adjusted without dismantling the machine as is evident.

Attention is also directed to a novel construction of the bracket 28 and the construction of the base of the journals 34 whereby the latter may be laterally adjusted as desired. Attention is also directed to the novel construction of the brackets 41 and 49, it being seen that the lugs 52 of the bracket 49 are mounted on the bearing plates 47, so that by manipulation of the nuts 55` and 56, the relative position of the blade 50, carried by the bracket 49 with respect to the rollers 38 and 6() may be readily and quickly adjusted as desired.

Considerable difiiculty hasarisen in devices of this character wherein two rods are employed, to adjust the relative position of the staking blade 50 with respect to the rollers carried by the upper jaw, since it is very difficult for the ordinary workman to adjust the position of the staking blade 50 so that the same will be in true alinement with the roller, the result of which is that .the roller wears conical and as it is impossible to do satisfactory work with a conical roller, it is necessary to frequently true up the roller and then readjust the same. Special attention is directed to the manner in which I have overcome this difficulty, and in my construction the staking blade is always in alinement with the roller, owing to the provision of a single rod and the manner in which the same is mounted, so that the staking blade 50 when adjusted will always be in true alinement with the roller 38, and the liability of the roller 38 wearing conical has been entirely eliminated. Attention is also directed to the fact that the journals 34 are mounted in such a manner that while they are laterally adjustable, the rotation of the vsame with respect to their support is prevented, so that in the act of adjustingthe journals it is impossible to get the roller out of true alinement.

It will now be apparent that I have devised a novel and useful construction of a leather staking machine which embodies the the above description, and while I have, in

the present instance, shown and described a preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having'thus described my invention, what I claim as new and desire to secure by Letters Patent, is zl. In a leather staking machine, a staking jaw, a bracket secured thereto having a laterally extending guideway, a staking roller having a conical journal and a conical bearing mounted in said guideway for the reception of said journal, whereby said bearing may be adjusted toward or away from said staking roller.

2. In a leather staking machine, an upper jaw, a bracket secured thereto and having guides on the outer portions thereof, conical journal bearings adjustably secured with respect to said guides, and a staking tool having conical journals rotatably mounted in said conical bearings.

8. In a leather staking machine, a lower jaw, a bracket carried thereby and provided with bearing faces and a depending centrally located, apertured lug, a second bracket having lugs seated on said bearing faces, a centrally located rod` passing through said central lug and secured to said second bracket, a lower staking tool, secured to said second bracket, and means for longitudinally adjusting said central rod with respect to said first bracket to vary longitudinally the position of said lower staking tool.

4. In a leather staking machine, upper and lower jaws, actuating means therefor, staking devices carried by said upper jaw, a bracket carried by said lower jaw and provided with bearing faces and a depending centrally located apertured lug, a second bracket having lugs seated on said bearing faces, 'a single centrally located rod passing through said central lug and secured to said second bracket, a lower staking tool secured to said second bracket and located intermediately of said staking devices on said upper jaw, and means for adjusting said central rod with respect to said rst bracket to vary the relative location of said lower staking tool with respect to said upper staking devices.

FRANK F. SLOCOMB.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

